/* testGPMO() */
/* Rip_GPMO() */
/* Depack_GPMO() */


#include "globals.h"



short testGPMO()
{
    /* test 1 */
    if (PW_i < 1080)
    {
        /*printf ( "#1 (PW_i:%ld)\n" , PW_i );*/
        return BAD;
    }
    /*if ( PW_Start_Address == 0)printf ("yo");*/

    /* test 2 */
    PW_Start_Address = PW_i - 1080;
    for (PW_k = 0; PW_k < 31; PW_k++)
    {
        /* size */
        PW_j = (((in_data[PW_Start_Address + 42 + PW_k * 30] * 256) + in_data[PW_Start_Address + 43 + PW_k * 30]) * 2);
        /* loop start */
        PW_m = (((in_data[PW_Start_Address + 46 + PW_k * 30] * 256) + in_data[PW_Start_Address + 47 + PW_k * 30]) * 2);
        /* loop size */
        PW_n = (((in_data[PW_Start_Address + 48 + PW_k * 30] * 256) + in_data[PW_Start_Address + 49 + PW_k * 30]) * 2);

        if (test_smps(PW_j, PW_m, PW_n, in_data[PW_Start_Address + 45 + PW_k * 30] / 2, in_data[PW_Start_Address + 44 + PW_k * 30]) == BAD)
        {
            /*      printf ( "#2 (Start:%ld)(siz:%ld)(lstart:%ld)(lsiz:%ld)\n" , PW_Start_Address,PW_j,PW_m,PW_n );*/
            return BAD;
        }
    }

    /*if ( PW_Start_Address == 0)printf ("yo");*/

    /* test #4  pattern list size */
    PW_l = in_data[PW_Start_Address + 950];
    if ((PW_l > 127) || (PW_l == 0))
    {
        /*    printf ( "#4,0 (Start:%ld)\n" , PW_Start_Address );*/
        return BAD;
    }

    /*if ( PW_Start_Address == 0)printf ("yo");*/

    /* PW_l holds the size of the pattern list */
    PW_k = 0;
    for (PW_j = 0; PW_j < 128; PW_j++)
    {
        if (in_data[PW_Start_Address + 952 + PW_j] > PW_k)
            PW_k = in_data[PW_Start_Address + 952 + PW_j];
        if (in_data[PW_Start_Address + 952 + PW_j] > 127)
        {
            /*      printf ( "#4,1 (Start:%ld)\n" , PW_Start_Address );*/
            return BAD;
        }
    }

    /*if ( PW_Start_Address == 0)printf ("yo");*/

    /* PW_k holds the highest pattern number */
    /* test last patterns of the pattern list = 0 ? */
    PW_j += 2; /* found some obscure ptk :( */
    while (PW_j < 128)
    {
        if (in_data[PW_Start_Address + 952 + PW_j] > 0x7f)
        {
            /*      printf ( "#4,2 (Start:%ld) (PW_j:%ld) (at:%ld)\n" , PW_Start_Address,PW_j ,PW_Start_Address+952+PW_j );*/
            return BAD;
        }
        PW_j += 1;
    }
    /* PW_k is the number of pattern in the file (-1) */
    PW_k += 1;

    /*  if ( PW_Start_Address == 0)printf ("yo");*/

    /* test #5 pattern data ... */
    if (((PW_k * 1024) + 1084 + PW_Start_Address) > PW_in_size)
    {
        /*    printf ( "#5,0 (Start:%ld)\n" , PW_Start_Address );*/
        return BAD;
    }
    for (PW_j = 0; PW_j < (PW_k * 256); PW_j++)
    {
        /* sample > 1f   or   pitch > 358 ? */
        if (in_data[PW_Start_Address + 1084 + PW_j * 4] > 0x13)
        {
            /*      printf ( "#5.1 (Start:%ld)\n" , PW_Start_Address );*/
            return BAD;
        }
        PW_l = ((in_data[PW_Start_Address + 1084 + PW_j * 4] & 0x0f) * 256) + in_data[PW_Start_Address + 1085 + PW_j * 4];
        if ((PW_l > 0) && (PW_l < 0x1C))
        {
            /*      printf ( "#5,2 (Start:%ld)\n" , PW_Start_Address );*/
            return BAD;
        }
    }

    return GOOD;
}


void Rip_GPMO()
{
    /* PW_k is still the nbr of pattern */

    PW_WholeSampleSize = 0;
    for (PW_j = 0; PW_j < 31; PW_j++)
        PW_WholeSampleSize += (((in_data[PW_Start_Address + 42 + PW_j * 30] * 256) + in_data[PW_Start_Address + 43 + PW_j * 30]) * 2);

    OutputSize = PW_WholeSampleSize + (PW_k * 1024) + 1084;

    CONVERT = BAD;
    Save_Rip("GPMO (Crunch Player) module", GPMO);

    if (Save_Status == GOOD)
        PW_i += (OutputSize - 1081); /* 1080 should do but call it "just to be sure" :) */
}



/*
 *   gpmo.c   2003 (c) Asle / ReDoX
 *
 * Converts GPMO MODs back to PTK
 *
 */

void Depack_GPMO()
{
    Uchar* Whatever;
    Uchar Max = 0x00;
    long WholeSampleSize = 0;
    long i = 0;
    long Where = PW_Start_Address;
    FILE* out;

    if (Save_Status == BAD)
        return;

    sprintf(Depacked_OutName, "%ld.mod", Cpt_Filename - 1);
    out = PW_fopen(Depacked_OutName, "w+b");

    /* get whole sample size and patch vols (/2)*/
    for (i = 0; i < 31; i++)
    {
        WholeSampleSize += (((in_data[Where + 42 + i * 30] * 256) + in_data[Where + 43 + i * 30]) * 2);
        in_data[Where + 45 + i * 30] = in_data[Where + 45 + i * 30] / 2;
    }
    /*printf ( "Whole sanple size : %ld\n" , WholeSampleSize );*/

    /* read and write whole header */
    fwrite(&in_data[Where], 1080, 1, out);

    Where += 952;

    /* write ID */
    Whatever = (Uchar*)malloc(4);
    Whatever[0] = 'M';
    Whatever[1] = '.';
    Whatever[2] = 'K';
    Whatever[3] = '.';
    fwrite(Whatever, 4, 1, out);
    free(Whatever);

    /* get number of pattern */
    Max = 0x00;
    for (i = 0; i < 128; i++)
    {
        if (in_data[Where + i] > Max)
            Max = in_data[Where + i];
    }
    /*printf ( "Number of pattern : %d\n" , Max );*/

    /* pattern data */
    Where = PW_Start_Address + 1084;
    fwrite(&in_data[Where], (Max + 1) * 1024, 1, out);
    Where += ((Max + 1) * 1024);

    /* sample data */
    fwrite(&in_data[Where], WholeSampleSize, 1, out);

    /* crap */
    Crap("       GPMO       ", BAD, BAD, out);

    fflush(out);
    fclose(out);

    printf("done\n");
    return; /* useless ... but */
}